After approval by delegates from the Russian SFSR, the Transcaucasian SFSR, the Ukrainian SSR, and the Byelorussian SSR on 29 December, the first Congress of Soviets of the Union of Soviet Socialist Republics (USSR) signed the Treaty on the Creation of the USSR and the Declaration of the Creation of the USSR, uniting all four republics as the USSR or Soviet Union.in wikipedia

Canadian Minister of Marine and Fisheries Ernest LaPointe and U.S. Secretary of State Charles Evans Hughes signed the Convention for the Preservation of the Halibut Fishery of the Northern Pacific Ocean, creating a fisheries commission to monitor halibut stocks. This was the first time Canada had negotiated a treaty independent of Britain and, when informed, the British asked to sign the treaty alongside Canada as had happened in the past. Canadian PM Mackenzie King successfully rejected the request, threatening to send independent representation to Washington, DC, if Britain persisted. This effectively marked the beginning of Canada’s control over its foreign policy - a right confirmed at the 1923 Imperial Conference seven months later.in wikipedia

13 Apr 1923 Soviet forces defeat Bochkaryov north of the Gulf of Okhotsk▲

Charles Wells of Pennsylvania and a party of twelve Inuit settled on Wrangel Island, with their ship, the Donaldson, also rescuing Ada Blackjack, the sole survivor of Vilhjalmur Stefansson’s original colony. This new settlement lasted one year before being ended by the arrival of Soviet troops under Captain Davydov.in wikipedia

Representatives of the Soviet Union aboard the Krasny Oktyabr landed in Wrangel Island, forcibly removing the American and 13 Inuit colonists (one of which had been born on the island). The settlers were taken to Vladivostok, from where they returned to Alaska via China and Japan. In 1926, the government of the Soviet Union reaffirmed the Tsarist claim to sovereignty over Wrangel Island.in wikipedia